Optical coupler for a microscope or similar article



FIG. 1 is a perspective view of the optical coupler for a microscope or similar article;

FIG. 2 is rear plan view;

FIG. 3 is a front plan view;

FIG. 4 is a side plan view.

It is noted that the right and left side views are identical and correspond to the top and bottom views as can be determined by the perspective view of FIG. 1. 

The ornamental design for an optical coupler for a microscope or similar article, as shown and described. 